JPS57150497A - Treatment of water - Google Patents

Treatment of water

Info

Publication number
JPS57150497A
JPS57150497A JP3477081A JP3477081A JPS57150497A JP S57150497 A JPS57150497 A JP S57150497A JP 3477081 A JP3477081 A JP 3477081A JP 3477081 A JP3477081 A JP 3477081A JP S57150497 A JPS57150497 A JP S57150497A
Authority
JP
Japan
Prior art keywords
tank
water
supplied
activated sludge
supply line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3477081A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Kubota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP3477081A priority Critical patent/JPS57150497A/en
Publication of JPS57150497A publication Critical patent/JPS57150497A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve denitrification rate with simple installations by circulating the water to be treated in a reaction tank to nitrate the same with aerobic activated sludge then subjecting the same to an aeration treatment to reduce BOD followed by sepn, of the activated sludge.
CONSTITUTION: The crude night soil from a storage tank 1 is supplied to a reaction tank 3, where gaseous oxygen is supplied thereto through a flow passage 4, and the crude night soil is circulated and fluidized by a pump flow passage 5 so that the BOD is reduced and ammoniacal nitrogen contents are nitrated by the effect of aerobic activated sludge. The treated water from the tank 3 is supplied to a preaeration tank 6 where it is blown with an oxygen-contg. gas through an air supply line 7, after which it is supplied to an aeration tank 8. In the tank 8, diluting water from a water supply line 9 is added thereto and an oxygen-contg. gas is blown through an air supply line 10 so that the BOD of the water to be treated is reduced by the aerobic activated sludge.
COPYRIGHT: (C)1982,JPO&Japio
JP3477081A 1981-03-10 1981-03-10 Treatment of water Pending JPS57150497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3477081A JPS57150497A (en) 1981-03-10 1981-03-10 Treatment of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3477081A JPS57150497A (en) 1981-03-10 1981-03-10 Treatment of water

Publications (1)

Publication Number Publication Date
JPS57150497A true JPS57150497A (en) 1982-09-17

Family

ID=12423536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3477081A Pending JPS57150497A (en) 1981-03-10 1981-03-10 Treatment of water

Country Status (1)

Country Link
JP (1) JPS57150497A (en)

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